selection, lowest price, guaranteed. ♪ sleep train ♪ your ticket to a better night's sleep ♪ >> nasa is marking 10-years since the columbia disaster. with a ceremony honoring all the astronauts who gave their lives for space exploration. on february first, 2003, the space shuttle columbia broke up upon re-entering the earth's atmosphere, killing all seven astronauts on board. today, a large group gathered at the space mirror memorial, the 42-foot high black granite memorial at kennedy space center in florida. the memorial contains the names of the 24-people who were killed on missions and other training and commercial accidents. former astronaut buzz aldrin also helped lead a tribute to fallen astronauts at arlington national cemetery. former massachusetts senator and one-time presidential candidate john kerry. is now officially the country's secretary of state. kerry was sworn in today by supreme court justice elena kagan. kerry becomes in the nation's 68th secretary of state. according to a u-s official, kerry's first trip will be to israel and egypt. that could happen in a couple